[galaxy-dev] Displaying track into UCSC

Hi all, We have installed a local galaxy server and we are encountering a problem when trying to use UCSC display application on private dataset. UCSC is giving us the following error message : Unrecognized format line 2 of http://.../galaxy.bed (note: chrom names are case sensitive) Curiously, it works fine with my personal account but it doesn't for all other users. It also works for displaying tracks based on a public dataset for all users. Could anybody explain us what's happening ? Thanks in advance for any help, Julien